6 letter words:
untuck12,
5 letter words:
truck11,
trunk9,
uncut7,
4 letter words:
fuck13,
funk11,
ruck10,
tuck10,
curf9,
knur8,
kuru8,
turk8,
turf7,
cunt6,
curn6,
curt6,
runt4,
turn4,
3 letter words:
fun6,
fur6,
cru5,
cur5,
cut5,
nut3,
run3,
rut3,
tun3,
urn3,
2 letter words:
nu2,
un2,
ut2,